1602 Indiana
| Discovery | |
|---|---|
| Discovered by |
Indiana University (Indiana Asteroid Program) |
| Discovery site | Goethe Link Obs. |
| Discovery date | 14 March 1950 |
| Designations | |
| MPC designation | 1602 Indiana |
|
Named after
|
Indiana (U.S. state) |
| 1950 GF · 1943 DJ 1975 XR |
|
| main-belt · Flora | |
| Orbital characteristics | |
| Epoch 16 February 2017 (JD 2457800.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 73.70 yr (26,918 days) |
| Aphelion | 2.4785 AU |
| Perihelion | 2.0106 AU |
| 2.2445 AU | |
| Eccentricity | 0.1042 |
| 3.36 yr (1,228 days) | |
| 358.61° | |
| 0° 17m 35.16s / day | |
| Inclination | 4.1615° |
| 75.143° | |
| 73.450° | |
| Physical characteristics | |
| Dimensions |
7.970±0.810 km 8.41±0.59 km 8.515±0.047 km 8.62 km (calculated) |
|
2.57±0.06 h 2.601±0.001 h 2.610±0.001 h |
|
| 0.24 (assumed) 0.2503±0.0493 0.259±0.040 0.297±0.095 |
|
|
B–V = 0.930 U–B = 0.550 Tholen = S · S |
|
| 12.49 · 12.57±0.24 | |
1602 Indiana, provisional designation 1950 GF, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 8 kilometers in diameter. It was discovered on 14 March 1950, by IU's Indiana Asteroid Program at Goethe Link Observatory near Brooklyn, Indiana, in the United States.
Indiana is a member of the Flora family, a large collisional group of stony S-type asteroids in the main-belt. It orbits the Sun at a distance of 2.0–2.5 AU once every 3 years and 4 months (1,228 days). Its orbit has an eccentricity of 0.10 and an inclination of 4° with respect to the ecliptic.Indiana was first identified as 1943 DJ at Turku Observatory in Finland, extending the body's observation arc by 7 years prior to its official discovery observation.
Three rotational light-curves of Indiana were obtained from photometric observations taken by astronomer Michael Pietschnig, Gary Vander Haagen and Michael Fleenor in Spring 2007. The light-curve analysis gave a rotation period between 2.57 and 2.61 hours with a change in brightness of 0.12 to 0.19 magnitude, respectively (U=2/3/3-).
According to the surveys carried out by the Japanese Akari satellite and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Indiana measures between 7.97 and 8.52 kilometers in diameter, and its surface has an albedo between 0.250 and 0.297. The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.24 – derived from 8 Flora, the largest member and namesake of this family – and calculates a diameter of 8.62 kilometers, using an absolute magnitude of 12.49.
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